Pictured, Serge Fournier moments after being pushed off a Las Vegas public bus by Cadesha Bishop.

Cadesha Bishop walks away offering no help after Serge Fournier lands on the ground:

In the CCTV clip taken from the bus’ security cameras, a woman can be seen talking to Fournier as he walked past carrying a walker and heading towards the door. Moments earlier the man had asked the 25 year old woman to be ‘nicer’ to fellow passengers after she’d been heard cursing other riders.

With his back turned to the woman as he now makes to alight the bus, video showed Bishop with both hands pushing against the unawares 74 year old man- shoving Fournier down the steps of the public transit bus and smashing his face on the concrete ground.

In police documents- Bishop is accused of shoving Fournier out the door ‘with enough force that he never touched any of the steps’ before hitting his head about eight feet (2.4 meters) from the bus.

According to the arrest report, witnesses saw her walking away from the bus without offering Fournier help, grabbing her son’s hand and leading him away.

A department statement says investigators still seek witnesses to the March 21 incident.